MATERIAL FOR POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide lithium-iron-phosphate-based compounds having olivine structure for positive electrodes of lithium secondary batteries that provide lithium secondary batteries of excellent rate property.

SOLUTION: The materials for positive electrodes of lithium secondary batteries includes lithium-iron-phosphate compounds which contain divalent iron [Fe(II)] and trivalent iron [Fe(III)] by between 1 and 50 of a molar ratio of F(II)/Fe(III).

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